百分比

LeannaChina

Q23:
On a certain transatlantic crossing, 20 percent of a ship’s passengers held round-trip tickets and also took their cars abroad the ship.If 60 percent of the passengers with round-trip tickets did not take their cars abroad the ship, what percent of the ship’s passengers held round-trip tickets?


A.33
%B.40%
C.50%
D.60%
E.66
%Answer:
QX:

On a certain transatlantic crossing, 20 percent of a ship’s passengers held round-trip tickets and also took their cars abroad the ship.If 60 percent of the passengers with round-trip tickets did not take their cars abroad the ship, what percent of the ship’s passengers held round-trip tickets?



A.20

B.30C.50

D.65

E.70

Answer:
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Q24:
In the xy-plane, line n passes through the origin and has slope 4.If points (1, c) and (d, 2) are on line n, what is the value of
?

A.0.25
B.0.5
C.2
D.4
E.8
Answer:

高人指点一下吧 一到 百分比问题就不会啊！！还有 24题 我算的是B 可是答案是E。。。恩。。怎么办呢 谢谢啦~~